[Talk-GB] Postcode centroids

Kevin Peat kevin at kevinpeat.com
Fri Jan 21 09:51:42 GMT 2011

Hello Chris,

I was wondering why you don't see any value in just adding the postcode
centroids to the map?

There are probably 25000+ buildings in my area so it isn't feasible for me
to add them all and their addresses in less than a lifetime whereas adding
the postcode centroids would surely allow an instant improvement in
navigation for many users who are used to tapping a postcode into their


On 20 January 2011 18:17, Chris Hill <osm at raggedred.net> wrote:

> Now that people are tracing buildings from Bing etc addressing is getting
> more widespread, but one awkward area is postcodes. The Open data that OS
> released last year included the Code Point Open dataset which has the
> location of postcode centroids. These can help with adding postcodes to
> addresses.
> I have created an overlay from the postcode centroids. You can see it here
> http://codepoint.raggedred.net/ One way to use this is as an overlay in an
> editor. Blackadder has added how to set this up in JOSM on the wiki page
> http://wiki.openstreetmap.org/wiki/Ordnance_Survey_Opendata#Code-Point_OpenIt also works in Potlatch 2.
> I have only loaded some of the postcode areas so far. You can see these on
> the wiki page:
> http://wiki.openstreetmap.org/wiki/User:Chillly/codepoint
> Please do not just add the centroid to the map. I don't see the value of
> that. I am interested in the experience people gain from using this data,
> for example to add postcodes to an address such as addr:postcode.
> --
> Cheers, Chris
> user: chillly
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